Schedule: a typical Saturday (the flights of Jul 25, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
DELTA · FLIGHT DL 455SCHEDULED · TYPICAL SCHEDULE
DL 455 · DCA → ATL
departs 8:59 AM ET · arrives 10:57 AM ET
Forecast issued Thu 9:00 AM ET · 48h before departure
Odds over time
Arrive at ATL more than 15 minutes late?
11%chance · ±2 pts−2 pts · 24h
HOW SURE WE AREModerate. The odds now blend history with early weather forecasts.
How late will it get to ATL?
On time or early
88%
15–30 min late
5%
30 min–1 hour late
3%
1–2 hours late
1%
Over 2 hours late
2%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.